...
using Lua;

namespace bot
{
    class Program
    {
        static void Main(string[] args)
        {
            Lua lua = new Lua();
            lf = new LuaFunctions();
            lua.RegisterFunction("print_s",lf,lf.GetType().GetMethod("print_s"));
            try
            {
                lua.DoFile("script.lua");
            }
            catch(Exception err)
            {
                Console.WriteLine("Lua error : "+err.Message);
                System.Environment.Exit(1);
            }
        }
    }
}